Question

If f()=

X
3 and g(x) = 4x2 + x - 4, find (f+ g)(x).
O A. 4x²
** Ex-1
O B. 6x2 - 7
2
O C. 4x2 +1x-1
D. 4x2 + 3x - 7
o​

Answer 1

`(f + g)(x) = 4x^2 + x - 7`

Explanation:

f(x) = -3

`g(x) = 4x^2 + x - 4`

To find (f + g)(x), we simply have to find f(x) + g(x) .

`(f + g)(x) = f(x) + g(x) = -3 + 4x^2 + x - 4\\\\(f + g)(x) = 4x^2 + x - 4 - 3\\\\(f + g)(x) = 4x^2 + x - 7`